Temperature-regulator



(No Model.) J. F. lVIoELROY.` TEMPERATURE REGULATOR.

No. 471,315. Patented Mar. 22,1892.

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NiTED STATESh PATENT OFFICE.

JAMES F. MCELROY, OF ALBANY, NEIV YORK, ASSIGNOR TO THE CONSOLI- DATED OAR HEATING COMPANY, OF WHEELING, WEST VIRGINIA.

TEM PERATU RE-REGULATOR.

SPECIFICATION formingl part f Letters Patent NG. 471,315, dated March 22, 1892.

Application tiled May 27,1891. Serial No. 394.311. (No model.)

To all whom it may concern,.-

Be it known that I, JAMES F. MCELROY, a citizen of theUnited States, residing at Albany, in the county of Albany and State of New York, have invented certain new and useful Improvements in Temperature-Regulators, of

. which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to new and useful improvements in temperature-regulators and the invention consists in the peculiar construction of the supporting-frame and the connecting mechanism for transmitting t-he expansive force in the thermic cells to the valve or damper to be regulated, and, further, in the peculiar construction, arrangement and combination of the various devices, as more fully hereinafter described and claimed.

In the drawings,rFigure l is a front elevation of my improved device. Fig. 2 is a crosssection thereof lon line @c oc in Fig.' l. Fig. 3 is'a vertical central section on line y y, Fig. l.

A is the supporting-frame, provided with suitable means for attaching it to the wall of the chamber to which the device is to be applied. This frame is provided at the top with a horizontal bracket B, which is centrally provided with screw-threaded sockets adapted to receive the stem C, which is correspondingly threaded and which extends through the top of the bracket. To the lower end of thisstem is secured a thermic cell or cellsD D. I preferably employ two cells, as it lenables me to get a greater expansion without increasing the diameter. In these cells I place any suitable expansible medium, preferably one which will vaporize at or about the temperature desired to be maintained.

The frame A is provided at its lower end with a guide E, through which the connectingrod F passes. This rod may be connected to any suitable valve or damper, and this connection may be made in any desired manner. The upper end of this rod is screw-threaded and with it engage the adjusting -nut G, which rests upon the spring H, supported in the top of the bearing E. This rod also engages with a nut I above the nut G, which is pivoted by means of the pin J to a swinging frame K. This frame is bifurcated to receive the nut and is pivoted upon the pin L at one side of the frame.

M are suitable jam-nuts.

In setting the device it frequently is neces? l sary to raise and lower the connecting-rod to get the proper adjustment to the valve-seat, and by making the same screw-threaded engagement between the nuts G and I, I can raise or lower the rod F by turning it and 6o still maintain the same relative position between the nuts, and I can turn the nut G independently of the nut I and increase the tension of the spring H. I preferably provide the aperture N', through which a pin 65 may be passed to turn the rod F.

The frame K is provided at its opposite side in line with the center of the thermic cells D with the notch O, in which the stem P, secured to the under side of the thermic cells, en- 7o gages. A suitable neck Q, with rounded sides R, is formed to engage with this notch to allow of a change of angular relation between the parts as the cell expands and retracts. It

is evident that as the cell expands the frame expand the cell to cause it to act at a higuzemm or lower temperature.

It is evidentthat I may turn my device the I other side up without changingits operation;

but I preferably suspend the thermic cell, as

all the element of weight upon it is eliminated.

What I claim as my invention is l. In a temperature-regulator, the combina- 9o tion, with the frame and a bracket thereon, of a thermic cell suspended from said bracket and a hinged frame having its outer free edge extending t0 within proximity of the thermic cell and connected with the same and with the valve to be actuated, substantially as described'.

2. In atemperature-regulator, the combination, with the frame and a bracket thereon,

of a thermic cell suspended from said bracket, r `o a hinged frame having its outer free edge extending to within proximity of the thermic cell, a suitable connection `between the said Y free edge and the therlnic cell, a connectingrod for connecting the free edge With the valve to be actuated, and means for adjusting the length of the connecting-rod, substantially as described.

3. In a temperat ure-regulator, the combination, with the frame and bracket thereon, of a therinic cell suspended from the bracket, a connecting-rod, a connectingfralne between the thermic cell and rod, anut I on said frame, in which the rod engages, means for turning the rod in said nut to lengthen or shorten the connection between the tllermic cell and Valve to be operated, a spring II on the rod, the lower en d ot' which rests against the frame, 

